# A3 Security

> Security testing and engineering for modern software teams. We test applications and AI agents, integrate security into delivery pipelines, and build automation that turns findings into fixes.

A3 Security is an independent consultancy supporting software companies with active engineering teams and limited dedicated security engineering capacity. We provide focused projects and ongoing engineering support across the United States through remote collaboration and on-site work where it adds value.

## Services

- [Web Application & API Penetration Testing](https://www.a3-security.com/services.html#application): Understand what an attacker can actually exploit in your application. We combine scoped manual testing with targeted tooling and help your developers validate the fixes. Deliverables include Authentication, authorization, and tenant isolation testing; Business-logic and API security testing; Reproducible findings with evidence and impact; Prioritized remediation guidance; Retesting of agreed findings.
- [Security Tooling & CI/CD Integration](https://www.a3-security.com/services.html#delivery): Make security checks part of the way your engineers ship. We connect your tools to your delivery pipeline, reduce alert noise, and put findings in front of the people who can fix them. Deliverables include GitHub Actions, GitLab CI, and Jenkins integration; SAST, DAST, SCA, and secrets scanning rollout; Finding triage, deduplication, and ownership routing; Practical release gates and exception workflows; Developer training and operational runbooks.
- [AI Application & Agent Security Testing](https://www.a3-security.com/services.html#ai-security): Find out whether untrusted input can make your AI application expose data or take an unauthorized action. We test chatbots, RAG applications, agents, and MCP integrations in the context of your actual permissions and workflows. Deliverables include Direct and indirect prompt-injection testing; Sensitive-data exposure and tenant isolation checks; RAG retrieval authorization and data access review; MCP server and tool-permission assessment; Hardening guidance and repeatable regression tests.
- [GitHub Security Implementation](https://www.a3-security.com/services.html#github): Roll out GitHub Advanced Security with configuration your teams can maintain. We help implement GitHub Code Security and Secret Protection capabilities appropriate to your plan, repositories, and development workflow. Deliverables include CodeQL configuration, coverage, and alert tuning; Secret scanning and push protection rollout; Dependency review and Dependabot workflows; GitHub Actions permissions and workflow hardening; Repository rules, remediation ownership, and onboarding.
- [Security Automation & AI Integration](https://www.a3-security.com/services.html#automation): Reduce the manual work between detection and remediation. We build custom integrations and AI-assisted workflows that connect your security tools, engineering teams, and internal systems. Deliverables include Scanner, ticketing, chat, and cloud API integrations; Vulnerability enrichment, prioritization, and routing; AI-assisted triage with review before consequential actions; Compliance evidence collection and reporting workflows; Internal security assistants with scoped access and audit logs.
- [Cloud Security Reviews & Remediation](https://www.a3-security.com/services.html#cloud): Understand your cloud exposure and put the fixes into practice. We review AWS and GCP environments, prioritize meaningful risks, and work with your team on hardening and infrastructure changes. Deliverables include Architecture, IAM, and configuration reviews; Logging, data protection, and workload security; Terraform review and hardening; Prioritized findings and remediation planning; Implementation support and validation.

## Ways to engage

- Assess: scope an application, AI workflow, cloud environment, or development pipeline; receive evidence, priorities, and a remediation plan.
- Implement: deploy integrations, tune tools, harden controls, and help engineering teams remediate findings.
- Maintain: ongoing tool tuning, vulnerability triage, regression testing, and security engineering support.

Scope, deliverables, access, and pricing are agreed before work begins. GitHub capabilities depend on the customer's plan and licenses. Penetration testing and AI security testing are performed within an agreed, authorized scope.

## Company and contact

- [Home](https://www.a3-security.com/): Service overview and positioning.
- [Approach](https://www.a3-security.com/approach.html): Scoping, evidence, remediation, and implementation support.
- [About](https://www.a3-security.com/about.html): Independent, experienced, collaborative security engineering.
- [Contact](https://www.a3-security.com/contact.html): Discuss a project at contact@a3-security.com.
- [Careers](https://www.a3-security.com/careers.html): No current openings. Future opportunities are United States (remote); email careers@a3-security.com.

## Machine-readable resources

- [Full public website content](https://www.a3-security.com/llms-full.txt): Plain-text page content with canonical source URLs.
- [XML sitemap](https://www.a3-security.com/sitemap.xml): Canonical indexable pages.

The HTML pages are the canonical source. This guide is supplemental and does not replace robots.txt or grant permission to test systems.